Cole-Parmer 18200-20 Operating manual
Operating Manual
USB-based
Analog and Digital I/O Module
MODEL NO. 18200-20
The 18200-20 is a USB 2.0 full-speed device designed for USB 1.1 ports, and was tested for full
compatibility with both USB 1.1 and USB 2.0 ports.
The 18200-20 offers true simultaneous sampling of up to eight channels of 16-bit single-ended analog
input. This is accomplished through the use of one A/D converter per channel. The range of each channel is
independently configurable via software. Eight digital IO lines are independently selectable as input or
output. A 32-bit counter is capable of counting TTL pulses. The 18200-20 is powered by the +5 volt USB
supply from your computer. No external power is required.
A SYNC (synchronization) control line allows you to synchronize two 18200-20 modules together to
acquire data synchronously from 16 analog inputs.
Cole-Parmer Instrument Company
625 East Bunker Court
Vernon Hills, Illinois 60061-1844
(847) 549-7600
(847) 247-2929 (Fax)
800-323-4340
www.coleparmer.com
e-mail: techinfo@coleparmer.com
Document Revision 1, May, 2006
© Copyright 2006 Measurement Computing Corporation, 1608FSR1
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Table of Contents
Preface
About this Operating Manual...............................................................................................................5
What you will learn from this manual ................................................................................................................5
Conventions in this manual ................................................................................................................................5
Where to find more information.........................................................................................................................5
Chapter 1
Introducing the 18200-20......................................................................................................................6
18200-20 block diagram.....................................................................................................................................7
Software features................................................................................................................................................7
Connecting a 18200-20 to your computer is easy...............................................................................................8
Chapter 2
Installing the 18200-20..........................................................................................................................9
What comes with your 18200-20 shipment? ......................................................................................................9
Hardware .......................................................................................................................................................................... 9
Additional documentation................................................................................................................................................. 9
Unpacking the 18200-20 ....................................................................................................................................9
Installing the software ......................................................................................................................................10
Installing the hardware .....................................................................................................................................10
Chapter 3
Functional Details ...............................................................................................................................11
Theory of operation - analog input acquisition modes .....................................................................................11
Software paced mode.......................................................................................................................................................11
Continuous scan mode .....................................................................................................................................................11
Burst scan mode...............................................................................................................................................................11
External components ........................................................................................................................................12
USB connector.................................................................................................................................................................12
LED .................................................................................................................................................................................12
Screw terminal wiring......................................................................................................................................................13
Main connector and pin out .............................................................................................................................................13
Analog input terminals (CH0 IN - CH7 IN).....................................................................................................................14
Digital I/O terminals (DIO0 to DIO7)..............................................................................................................................15
Power terminals ...............................................................................................................................................................15
Ground terminals .............................................................................................................................................................16
Calibration terminal .........................................................................................................................................................16
Counter terminal ..............................................................................................................................................................16
SYNC terminal ................................................................................................................................................................16
Trigger terminal...............................................................................................................................................................16
Accuracy...........................................................................................................................................................17
Gain queue........................................................................................................................................................19
Synchronizing multiple units............................................................................................................................20
Chapter 4
Specifications......................................................................................................................................21
Analog input section.........................................................................................................................................21
Digital input/output...........................................................................................................................................22
External trigger.................................................................................................................................................22
External clock input/output...............................................................................................................................23
Counter section.................................................................................................................................................23
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18200-20 Operating Manual
Memory ............................................................................................................................................................23
Microcontroller.................................................................................................................................................24
Power................................................................................................................................................................24
General .............................................................................................................................................................24
Environmental ..................................................................................................................................................24
Mechanical .......................................................................................................................................................24
Main connector and pin out..............................................................................................................................25
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Preface
About this Operating Manual
What you will learn from this manual
This manual explains how to install, configure, and use the 18200-20 so that you get the most out of its USB
data acquisition features.
This manual also refers you to related documents available on our web site, and to technical support resources.
Conventions in this manual
For more information on …
Text presented in a box signifies additional information and helpful hints related to the subject matter you are
reading.
Caution! Shaded caution statements present information to help you avoid injuring yourself and others,
damaging your hardware, or losing your data.
<#:#> Angle brackets that enclose numbers separated by a colon signify a range of numbers, such as those assigned
to registers, bit settings, etc.
bold text Bold text is used for the names of objects on the screen, such as buttons, text boxes, and check boxes. For
example:
1. Insert the disk or CD and click the OK button.
italic text Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase. For
example:
The InstaCal® installation procedure is explained in the Quick Start Guide.
Never touch the exposed pins or circuit connections on the board
Where to find more information
The following electronic documents provide information relevant to the operation of the 18200-20.
! Cole-Parmer's Specifications: 18200-20 (the PDF version of the Electrical Specification Chapter in this
guide) is available on our web site at www.coleparmer.com/catalog/MoreInfo/18200-20-spec.pdf
! Cole-Parmer's Quick Start Guide is available on our web site at
www.coleparmer.com/catalog/MoreInfo/CP-Quick-Start.pdf
! Cole-Parmer's Guide to Signal Connections is available on our web site at
www.coleparmer.com/catalog/MoreInfo/CPsignals.pdf
! Cole-Parmer's Universal Library User's Guide is available on our web site at
www.coleparmer.com/catalog/MoreInfo/sm-ul-user-guide.pdf
! Cole-Parmer's Universal Library Function Reference is available on our web site at
www.coleparmer.com/catalog/MoreInfo/sm-ul-functions.pdf
! Cole-Parmer's Universal Library for LabVIEW
www.coleparmer.com/catalog/MoreInfo/SM-UL-LabVIEW.pdf
™
User’s Guide is available on our web site at
.
.
.
.
.
.
18200-20 Operating Manual (this document) is also available on our web site at
www.coleparmer.com/cpusbdaq1/18200-20.pdf
.
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Chapter 1
Introducing the 18200-20
This manual contains all of the information you need to connect the 18200-20 to your computer and to the
signals you want to measure. The 18200-20 is part of the Cole-Parmer brand of USB-based data acquisition
products.
The 18200-20 is a USB 2.0 full-speed device supported under popular Windows versions. It is designed for
USB 1.1 ports, and was tested for full compatibility with both USB 1.1 and USB 2.0 ports.
The 18200-20 offers true simultaneous sampling of up to eight channels of 16-bit single-ended analog input.
This is accomplished through the use of one A/D converter per channel. The range of each channel is
independently configurable via software. Eight digital IO lines are independently selectable as input or output.
A 32-bit counter is capable of counting TTL pulses. The 18200-20 is powered by the +5 volt USB supply from
your computer. No external power is required.
A SYNC (synchronization) control line allows you to synchronize two 18200-20 modules together to acquire
data synchronously from 16 analog inputs.
The 18200-20 is shown in Figure 1-1. I/O connections are made to the screw terminals located along each side
of the 18200-20.
Figure 1-1. 18200-20
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18200-20 Operating Manual Introducing the 18200-20
A
A
A
A
A
A
A
A
18200-20 block diagram
18200-20 functions are illustrated in the block diagram shown here.
USB
G= 1, 2, 5, 10
Full-speed
USB 2.0
Compliant
Interface
16
DIO
SYNC
Screw terminal I/O connector
CAL
TRIG_IN
CAL
8
USB
Microcontroller
32k x 16
SRAM
1616
SPI
/D 0
/D 1
/D 2
/D 3
/D 4
/D 5
Screw terminal I/O connector
/D 6
/D 7
32-bit
Event Counter
1 channel
Figure 1-2. 18200-20 functional block diagram
Software features
For information on the features of InstaCal and the other software included with your 18200-20, refer to the
Quick Start Guide that shipped with your device. The Quick Start Guide is also available in PDF at
www.coleparmer.com/catalog/MoreInfo/CP-Quick-Start.pdf
.
7
18200-20 Operating Manual Introducing the 18200-20
Connecting a 18200-20 to your computer is easy
Installing a data acquisition device has never been easier.
! The 18200-20 relies upon the Microsoft Human Interface Device (HID) class drivers. The HID class
drivers ship with every copy of Windows that is designed to work with USB ports. We use the Microsoft
HID because it is a standard, and its performance delivers full control and maximizes data transfer rates for
your 18200-20. No third-party device driver is required.
! The 18200-20 is plug-and-play. There are no jumpers to position, DIP switches to set, or interrupts to
configure.
! You can connect the 18200-20 before or after you install the software, and without powering down your
computer first. When you connect an HID to your system, your computer automatically detects it and
configures the necessary software. You can connect and power multiple HID peripherals to your system
using a USB hub.
! You can connect your system to various devices using a standard four-wire cable. The USB connector
replaces the serial and parallel port connectors with one standardized plug and port combination.
! You do not need a separate power supply module. The USB automatically delivers the electrical power
required by each peripheral connected to your system.
! Data can flow two ways between a computer and peripheral over USB connections.
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Installing the 18200-20
What comes with your 18200-20 shipment?
As you unpack your 18200-20, verify that the following components are included.
Hardware
! 18200-20
Chapter 2
! USB cable (2 meter length)
Additional documentation
In addition to this hardware manual, you should also receive the Quick Start Guide (available in PDF at
www.coleparmer.com/catalog/MoreInfo/CP-Quick-Start.pdf
software you received with your 18200-20 and information regarding installation of that software. Please read
this booklet completely before installing any software or hardware.
.). This booklet supplies a brief description of the
Unpacking the 18200-20
As with any electronic device, you should take care while handling to avoid damage from static
electricity. Before removing the 18200-20 from its packaging, ground yourself using a wrist strap or by simply
touching the computer chassis or other grounded object to eliminate any stored static charge.
If your 18200-20 is damaged, notify Cole-Parmer immediately by phone, fax, or e-mail:
! Phone: 800-323-4340.
! Fax: 847-247-2929
! Email: techinfo@coleparmer.com
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